Indications — Potential indications for CT colonography include the following:

●Screening for colorectal cancer (CRC) – CT colonography is an option for CRC screening in asymptomatic average-risk individuals over the age of 50 years [2,3]. However, the role of CT colonography in screening for CRC is controversial. While there is consensus that CT colonography should not be used for screening in patients at increased risk for CRC (eg, history of adenomas, inflammatory bowel disease, familial CRC syndrome), guidelines differ in their recommendations for CT colonography in average-risk individuals. Guidelines for CRC screening are discussed in detail, separately. (See "Screening for colorectal cancer: Strategies in patients at average risk", section on 'Guidelines for average-risk screening'.)

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